690+: System Board Terminals

Terminal A: Additional Digital Outputs

Terminal B: Master Reference which is used as reference 

Terminal C: Slave Encoder which can be used as either a reference or as the actual feedback like the 6055/HTTL encoder card

Terminal D: Encoder Reference Output which is used to output the encoder signal from the drive

 

For more information please consult the manual found on by following this QuickLink for the 690+ on Parker.com - (Manual, QuickStarts, Product Support, etc)